Document Detail

Association of FAS -1377 G>A and FAS -670 A>G functional polymorphisms of FAS gene of cell death pathway with recurrent early pregnancy loss risk.
MedLine Citation:
PMID:  22386066     Owner:  NLM     Status:  Publisher    
Apoptosis during the early stages of pregnancy enables the remodeling of the uterus for proper placentation. Apoptosis in the maternal activated cytotoxic T lymphocytes allows maternal immune tolerance to pregnancy and in glandular and stromal cells it helps with trophoblastic endometrial invasion. FAS gene is expressed at the maternal-fetal interface and is involved in the regulation of immune response and implantation. Altered FAS expression may result in altered apoptosis and ultimately affects both immune response and implantation. FAS -1377 G>A and FAS -670 A>G functional polymorphisms in the promoter region of FAS gene modulate its expression at transcriptional level. In a case-control study the contribution of FAS -1377 G>A and FAS -670 A>G polymorphisms to the risk of recurrent early pregnancy loss (REPL) was evaluated. DNA from 134 cases with a history of three or more REPL and 124 healthy controls with successful pregnancy outcomes were genotyped through PCR-RFLP. DNA sequencing was used to ascertain PCR-RFLP results. The genotype and allele frequencies for FAS -1377 G>A and FAS -670 A>G polymorphisms were compared in REPL and controls. FAS -1377 AA and AG genotypes were associated with an increased risk of REPL (OR, 3.25; 95%CI, 1.52-6.98 and OR, 2.62; 95%CI, 1.48-4.64, respectively), whereas FAS -670 genotypes conferred no risk. The -1377 AA/-670 GG genotypes combination of FAS polymorphisms showed highest risk (OR, 8.15; 95%CI, 2.75-25.81). Genotype combinations -1377 GA/-670 AA and -1377 GA/-670 AG were also statistically significant, suggestive of their role in REPL risk.
Rohini R Nair; Anuradha Khanna; Kiran Singh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-29
Journal Detail:
Title:  Journal of reproductive immunology     Volume:  -     ISSN:  1872-7603     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-3-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8001906     Medline TA:  J Reprod Immunol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
Department of Molecular & Human Genetics, Banaras Hindu University, Varanasi 221005, India.
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